Smoke-generator for shrapnel, shells, &amp;c.



Enron.

CECIL VILHELMTSCHO'U, or COPENHAGEN, DENMARK.

sMoKE cE ERAToR FOR SHRAPNEL, SHELLS, d sc.

SPECIFICATION 'formihg part of Letters Patent No. 723,737, dated March 24 1903. Application filed September 12, 1902. Serial him-1123,1205. (No model.)

, evolve a dense-'smoke of distinctive color or terials heretofore proposed have been expencharacterwhen the shell explodes and which can readily be seen at the gun from which the shell is discharged to enable.thegun-crew to determine distances. Such material should,

preferably, not add or detract fromtheexplosive or penetrative forceof the shell, but simply develop into smoke under the action of the intense heat of the ordinary explosive mixture used in the shell. It has been proposed to use material for this purpose heretofore; but so far as known by me the masive or have other objectionable features,

which have prevented them from being largely used. The need of such a'smoke-generator is due to the fact that the ordinaryexplosive mixtures do not yield sufiicient'smoke or a smoke of such color as to be discerned at the greater distances.

"The material which I have invented for the purpose named consists of sublimated zinc and flower of sulfur or pulverized brimstone,

the proportions being such as topresent about as many atoms of metallic zinc as su-lfurous atoms. These two materials will give, by chemical combination, a sulfid of zinc, which is totally transformed by the intense'heat produced by the explosive mixture of the shell into a white cloud of smoke which can be seen from a great distance. Owing to the presence of oxidized zinc and sometimes other foreign substances in the powder of zinc, it becomes necessary to determine. the actual amount of metallic zinc, so that'rthe proportions named may beaccurately obtained. By weigh the proportions are, substantially,

of subli ated zinc sixty-five and flowers of sulfur thirty-two. An advantage of this mixture is" that it does not become deteriorated and is not an element of danger when being prepared or, later, when in the'shells, the,

2. A smoke-generator for shrapnel, shells and similar projectiles, consisting of sublimated zinc and flowers of sulfur in the proportions, by weight, substantially of sixtyfive and thirty-two respectively.

In testimony that I claim the foregoing as my'inve'htion I have signed my name in presonce of two subscribing witnesses.

CECIL VILHELM SCHOU'. Witnesses:

-VIGGO BLOM, F. A. UsPUY. 

